LOCATION BISMARCKGROVE KSEstablished Series
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Fluventic Hapludolls
TYPICAL PEDON: Bismarckgrove silt loam - on a 1 percent north-facing slope in a cultivated field. (Colors are for moist soil unless otherwise stated.)
Ap--0 to 7 inches; very dark grayish brown (10YR 3/2) silt loam, grayish brown (10YR 5/2) dry; weak fine granular structure; soft, very friable, slightly sticky, slightly plastic; neutral; abrupt smooth boundary.
A--7 to 20 inches; very dark grayish brown (10YR 3/2) silty clay loam, grayish brown (10YR 5/2) dry; moderate fine subangular structure; slightly hard, friable, sticky, plastic; neutral; clear smooth boundary. (Combined thickness of the A horizons is 15 to 23 inches)
Bw--20 to 29 inches; dark grayish brown (10YR 4/2) silty clay loam, light brownish gray (10YR 6/2) dry; moderate fine subangular blocky structure; slightly hard, friable, sticky, plastic; slightly acid; clear smooth boundary. (5 to 12 inches)
C1--29 to 58 inches; light brownish gray (10YR 6/2) silt loam, very pale brown (10YR 8/2) dry; massive; soft, very friable, nonsticky, nonplastic; thin strata of sandier soil throughout; neutral; clear smooth boundary.
2C2--58 to 80 inches; pale brown (10YR 6/3) loamy fine sand, very pale brown (10YR 8/3) dry; single grain; loose, loose, nonsticky, nonplastic; neutral
TYPE LOCATION: Jefferson County, Kansas; about .3 miles south of Perry, Kansas; 2400 feet east and 1900 feet south of the northwest corner, sec. 26, T. 11 S., R. 18 E.
RANGE IN CHARACTERISTICS:
Soil moisture: The soil moisture control section is ?; udic moisture regime.
Mean annual soil temperature: 53 to 55 degrees F
Depth to secondary calcium carbonate: 40 to 60 inches
Depth to cambic horizon: 20 to 29 inches
Depth to redox concentrations: 40 to 60 inches
Lithologic discontinuity with sandy textures ranges from 45 to 60 inches
Particle-size control section (weighted average): 10 to 40 inches
Clay content: 18 to 35 percent
Thickness of the mollic epipedon ranges from 10 to 23 inches.
A horizon:
Hue: 10YR
Value: 2 or 3 moist; 4 or 5 dry
Chroma: 1 or 2
Texture: silt loam; silty clay loam, and loam
Clay content: 18 to 35 percent
Reaction: moderately acid to neutral
Bw horizon:
Hue: 10YR
Value: 3 to 4 moist; 5 to 6 dry
Chroma: 2 to 4
Texture: silt loam, silty clay loam, and silty clay
Clay content: 25 to 35 percent
Reaction: moderately acid to slightly alkaline
C horizon:
Hue: 10YR, 7.5YR, or 2.5Y
Value: 4 to 6 moist; 5 to 8 dry
Chroma: 2 or 3
Texture: silt loam or very fine sandy loam
Clay content: 10 to 27 percent
Calcium carbonate equivalent: 0 to 5 percent
Reaction: neutral to moderately alkaline
2C horizon:
Hue: 10YR, 7.5YR, or 2.5Y
Value: 4 to 6 moist; 5 to 8 dry
Chroma: 2 or 3
Texture: silt loam, very fine sandy loam, loamy sand and fine sand
Clay content: 5 to 18 percent
Calcium carbonate equivalent: 0 to 5 percent
Reaction: neutral to moderately alkaline
Strata of sandier material are common.
COMPETING SERIES: These are the
Armiesburg,
Battleground,
Dungan, Huntington(T), and
Omadi soils.
The Armiesburg soils are calcareous in the surface layer.
The Battleground, and Omadi soils contain carbonates throughout the series control section.
Dugan, and Huntington(T) soils do not have a lithologic discontinuity with sandy textures above 60 inches.
GEOGRAPHIC SETTING:
Parent material: silty alluvium
Landform: flood plain steps
Flooding: occasional to rare
Slopes: 0 to 3 percent
Elevation: 780 to 1000 feet
Mean annual temperature: 52 to 55 degrees F
Mean annual precipitation: 34 to 40 inches
Precipitation pattern: udic
Frost-free period: 170 to 190 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Belvue,
Bourbonais,
Chase,
Eudora,
Kimo,
Muscotah,
Reading,
Rossville,
Stonehouse, and
Wabash soils.
The Belvue and Eudora soils are coarse-silty and are on somewhat higher or similar positions.
The Belvue soil does not have a mollic epipedon.
The Bourbonais soil is coarse-silty over sandy and sits slightly higher on the landscape.
Kimo soils are somewhat poorly drained and are on lower positions on the landscape.
The Reading and Rossville soils are silty textured and on higher floodplain surfaces.
Reading soils have a argillic horizon.
The Stonehouse soil is sandy textured and sits higher on the landscape.
The Chase, Muscotah, and Wabash soils are fine textured soils and occupy a higher floodplain surface.
The Wabash soil is poorly drained.
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage: moderately well drained
Runoff: slow
Saturated hydraulic conductivity: moderate low
USE AND VEGETATION: Most areas are cultivated.
The main crops are corn, alfalfa, and sorghum.
The native vegetation is tall prairie grasses.
DISTRIBUTION AND EXTENT: Eastern Kansas. The soils of this series are of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Jefferson County, Kansas, 1999.
REMARKS:
Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 10 to 40 inches. (A, Bw, C1 horizons)
Mollic epipedon: The zone from 10 to 23 inches. (Ap, A horizons)
Cambic horizon: The zone from 20 to 29 inches. (Bw horizon)
Redoximorphic concentrations: In the zone from 36 to 50 inches. (C1, 2C2 horizons)
ADDITIONAL DATA: Kansas State University Pedology Laboratory, 96KS601240, SS1246-1252; 97KS045002, SS1264-1269; 96KS177100, SS1150-1156; 94KS087390, SS1518-1523; 94KS087142, SS1524-1529; 94KS087403, SS1531-SS36; and the NSSL 95KS161047, SS930-936.